Electric condenser



April 19 1927. 1,625,094

H. E. REPPERT ELECTRIC CONDENSER,

Filed June 24. 1922 FIG. 1

lmnunlu Inventor Hugh E. Reppert y A11; n21

Patented Apr. 19, 1927.

HUGE E. REPPERT, OF WASHINGTON, DISTRICT OF COLUMBIA.

ELECTRIC CONDENSER.

Application filed June 24, 1922. Serial No. 570,735.

My invention pertains generally to conthe other, controls the fine adjustment. of the densers and more particularly to variable condenser plates. electric condensers. [This fine adjustment is accomplished by 5 The invention contemplates as a feature a rotating the control knob 19 causmg motion condenser in which the main and fine adto be imparted to the gear housing through justment control knobs are concentrically the gear 20 and an Intermediate gear 21 mounted thereby economizing space on .a meshing with the internal gear 16 forming a panel board or condenser case. part aof said housing. The intermediate 55 Another object of the invention provides gear 21 is :rotatably connected to the stud 15 for a'dual control of the movable plate aswhich is fastened in the condenser case top 5 sembly of an electric condenser, one directly and which limits the extent of rotation of through the movable plate spindle and one the gear housing to the length of the slot. through a concentrically mounted sleeve The gear housing being fastened to the spin- 60 which transmits I motion to the "said, plates dle 8 by the flanged ring 10 imparts motion through a series ofigearing. to the movable plate assembly 6 at a ratio With the above and ther objects in view depending upon the ratio of the gearing. the invention consists in the construction, The main adjustment may be had by macombination and arrangement ofparts as nipulating the knob 22 which is fastened to 65 will be hereinafter described. a sleeve 23 concentrically mounted about the Reference is to behad tothe accompanyshaft 18. The lower portion of the sleeve ing drawings, forming part of thisspecificais screw-threaded and has mounted thereon tion, in which like reference characters in an insulating member 24 which is secured to dicate corresponding parts throughout the the knob 22 by a dowel pin and to the 70 several views, and in Wl11Chgear housing 12 by bolts 26. It will be on- 25 Figure 1 is a sectional view partlybroken derstood, also, that I .do not desire to limit awa of my invention, and myself to this particular fastening means as Fig. 2 is a perspective view of the gear ot ienwvays may be as expediently employed. housing partly broken away to show the A pointer 27 operating over a dial on the 7 gear arrangement. panel board 28 is fastened between the knob Referring more particularly to the draw- 22 and member 24.

. ings, 5 indicates the top of a condenser case It will'be understood that the above dein which the usual movable plate assembly 6 scription and accompanying drawings comand fixed plates 7 are located. A spindle 8 prehendonly the general and referred em- 30 to which the movable plate assemb y is atbodiment of my invention an 'that various tached is enlarged as at 9, a flanged ring 10 minor changes in details of construction, being connected to said enlargement by a key proportion and arrangement of parts may 11. It is to be understood, however, that e made within the scope of the appended any desirable means may be substituted for claim and without sacrificing any of the ad- 35 this key for securing these parts together. vantages of. my invention.

A gear housing, comprising a top 12 of in- Having fully described my invention, sulating material, a bottom 13 which is prowhat I desire to secure by Letters Patent vided with a slot 14 in which a stud 15 is 1s: slidably engaged, and an internal gear 16 In a control mechanlsm for ad usting the 90 forming the wall is fixedly connected to the rotor plates about the ax s of the rotor shaft ring 10 in any suitable manner, such as by of a condenser, cons1st1ng of a housing, 'bolts 17 or the like. A shaft 18, having a means rigidly afiixed thereto for directly rocontrol knob 19 at one end and a gear 20 at tating the housing, and means for rigidly aifixing the housing to the rotor shaft, the combination of an annular gear race within the housing and rigidly afiixed thereto, a gear fixed at a distance from the shaft of the i condenser and enmeshed with the gear race with its axis of rotation parallel to the axis of rotation of the shaft, a spindle extending through the housing, a gear upon the end of HUGH E. REPPERT. 

